Kid Robot is that toy your mother warned you about. It's a tough little brand that spends its weekends tagging its name on train tracks and making out with pretty girls.

Kid Robot releases special, limited edition figurines designed by artists, from across the board--gallery artists, street artists, designers--you name it. But Munny figures are a special Kid Robot product-- a plain white figure whose aesthetic fate lies in the hands of its purchaser.

True to the KidRobot brand, this campaign is interactive and engaging, with a touch of subversiveness.

The ad starts out blank, but invites interaction.

After a couple of weeks in the subway, the ad is "completed" by its audience.